| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | CSL-04 DEB |
| Spacetrack catalog number | 34814 | 26132 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 04:55 | 2024 Dec 23 03:35 |
| Time of closest approach (UTC) | 2024 Dec 25 06:08:40.565 |
| Minimum distance | 4.104 km |
| Height difference | -2.917 km |
| Relative speed | 14.802 km/s |
| Angle between velocity vectors | 167° |
| Geographic position | 53.0°S, 49.1°E |
| Height | 793 km |
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